train A ,250m long and running at 30 m/s crosses a platform (P) in 20 sec.if P's length is increased by 20% and traiin B , running at 30 m/s,crosses P in24sec,what percent is train A's length less than that of Train B
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Answered by
1
Answer:
I don't know I don't now
Answered by
3
Answer:
16.67%
Step-by-step explanation:
Train A length = 250m
Train A Speed = 30 m/s
Time taken to cross the platform = 20 Sec
Length of Platform = X
X = (30*20) - 250
X = 350m
length of platform has been increased by 20%
new length = 420 m
speed of train B = 30 m/s
time to cross = 24 sec
train B length = (30*24)-420 = 300m
percent shorter = (( 300 - 250 )/300)*100
= 16.66%
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